The far side of the Moon has its own versions of the Grand Canyon—two of them, in fact! A new study explains how these deep ...

About 35 million years ago, an asteroid struck the ocean off the East Coast of North America, leaving behind a massive impact ...

While a visit to the Grand Canyon is mesmerizing and worthwhile, it's not necessarily easy. We consider the closest and most ...

If you're planning the perfect marriage proposal, you know the location is key. Try one of these seven spots in Arizona, ...

Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 minutes after an unknown object ...

A midair collision at the Grand Canyon killed over 100. The disaster partially led to the start of the FAA and changed air ...

Arizona has hosted the Super Bowl several times. What year will the Super Bowl be in Arizona again? Here's when it could ...

Center for Biological Diversity Reports President Trump’s Interior Order Threatens to Open Grand Canyon National Monument to ...

Arizona Senate President Warren Petersen said Interior Secretary Burgum can act now to unleash America's uranium capabilities.

A federal judge has rejected a lawsuit by Arizona lawmakers challenging former President Joe Biden’s designation of a ...

A federal judge on Monday lifted the deadline for workers to accept President Donald Trump’s buyout offer until he rules on ...

Despite a federal ruling rejecting a motion to remove protections on land in near the Grand Canyon, an agreement between ...